Abstract
Those who use this volume will bear in mind the illuminating morphological introduction provided by the author in its predecessor (see Nature, vol. 108, p. 39). The numerous lithographs are from the artistic drawings of Miss G. M. Woodward, and the author again furnishes vigorous text-illustrations showing the specific orthcecia (normal zocecia) and the accompanying aviculcecia, which are the skeletons of the modified polypides that defend the colony. The variety of form, position, and number in the aviculcecia will surprise those who are not specialists. The general account of the genus Pelmatopora (pp. 241–253) is a good example of Dr. Lang's attractive method of dealing with Nature's species-making, here styled “evolutionary activity.” In this case, the whole of the thirty-eight species are derived from zones in the Senonian.
Catalogue of the Fossil Bryozoa (Polyzoa) in the Department of Geology, British Museum (Natural History). The Cretaceous Bryozoa (Polyzoa). Vol. 4: The Cribrimorphs. Part 2.
By Dr. W. D. Lang. Pp. 12 + 404 + 8 plates. (London: British Museum (Natural History), 1922.) 1l. 12s. 6d.
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C., G. Catalogue of the Fossil Bryozoa (Polyzoa) in the Department of Geology, British Museum (Natural History) The Cretaceous Bryozoa (Polyzoa). Vol 4: The Cribrimorphs. Part 2. Nature 110, 445 (1922). https://doi.org/10.1038/110445b0
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DOI: https://doi.org/10.1038/110445b0